gps: Add dummy functions stubs

* sec_gps_conf
* Sec_Configuration

Change-Id: Id50229979981fb072a382456f64aac3fccb6cb7e
(cherry picked from commit 62659daca5036b5030f50131447f05b9589128e4)
fstab: remove length parameter for encryption

* This is not needed and actually causes encryption to fail
  most of the time.

Change-Id: I86bdffccab213e4e06609c1c179666fab30ea7c6
(cherry picked from commit f198d63e3318f0075c801a3d5686aa2a308de2a5)
init: enable pulsing LED on boot

Straight squashkang of commits from d2-common:
757670f0 - d2: enable pulsing led while booting
053b652e - d2: prevent boot led from overriding charging led
82a6da8e - d2: prevent boot led from overriding charging led, take 2

Change-Id: I95426a581efb0cccad7e82c60d563de19a938137
(cherry picked from commit 835751fe83e2fd53a100fca5575b0c6577a0e185)